python - 怎么绑定(bind)escape键关闭这个窗口

Question

我拼凑了一个小程序来下载专利。我想将转义键绑定(bind)到关闭窗口的函数，但我真的不知道如何实现。我已经将转义键绑定(bind)到“退出”函数，但是有人可以帮我弄清楚如何编写关闭文本输入窗口的函数吗？

我是个菜鸟。

from Tkinter import *
import urllib

master = Tk()
e = Entry(master)
e.pack()

e.focus_set()


def patdload(self, event=None): 
    allnums = e.get()
    index = 0
    test = allnums.find('.')
    if test > 0:
        sep = 0
        while sep != -1:
            sep = allnums.find('.', index) 
            if sep != -1:
                patno = allnums[index:sep]
            elif sep == -1:
                patno = allnums[index:]

            #patno = e.get()
            paturl = "http://patentimages.storage.googleapis.com/pdfs/US" + patno + ".pdf"
            urllib.urlretrieve (paturl, (patno + ".pdf"))
            index = sep + 1


    else:
        patno = e.get()
        paturl = "http://patentimages.storage.googleapis.com/pdfs/US" + patno + ".pdf"
        urllib.urlretrieve (paturl, (patno + ".pdf"))


def quit #help#:

master.bind('<Return>', patdload)

master.bind('<Escape>',quit)



#b = Button(master, text = "GET", width = 10, command = patdload)
#b.pack()


mainloop()

编辑:这是新的错误:

Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1532, in __call__
return self.func(*args)
File "C:\Python27\PatentGet.py", line 42, in <lambda>
master.bind('<Escape>', lambda x: close())
File "C:\Python27\PatentGet.py", line 39, in close
master.widthdraw() # if you want to bring it back
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1894, in __getattr__
return getattr(self.tk, attr)
AttributeError: widthdraw

Answer 1

首先，quit 是一个内置方法，所以我会使用另一个名称。否则，函数如下:

import sys

def close(event):
    master.withdraw() # if you want to bring it back
    sys.exit() # if you want to exit the entire thing

master.bind('<Escape>', close)